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Available on request

B&R X20BC008U – Bus controller, OPC UA server

Name: B&R X20BC008U – Bus controller, OPC UA server
Brand: B&R
SKU: X20BC008U

MPN: X20BC008U · Brand: B&R

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Bus controllers
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can X20BC008U be shipped?

X20BC008U is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up X20BC008U in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for X20BC008U and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for X20BC008U, subject to availability and destination.

• Protocol: OPC UA

• I/O configuration via OPC UA

• 10 ms minimum cycle time

• Integrated switch for wiring multiple slaves

• 100 Mbit/s full-duplex mode

• Up to 1440 bytes of input data and up to 1440 bytes of output data possible

• Integrated web page for firmware updates

• OPC UA diagnostics and module diagnostics at runtime via OPC UA clients

This bus controller provides OPC UA server functions. This allows any OPC UA clients access to read or write data from I/O modules connected to the bus controller.

Accessories

Required accessories (order separately)

X20PS9402	System modules for bus controllers — Supply for the bus controller, X2X Link and internal I/O supply; Low-cost supply module for small X20 system; Feed and bus controller / X2X…
X20PS9400	System modules for bus controllers — Supply for the bus controller, X2X Link and internal I/O supply; Feed and bus controller / X2X Link supply electrically isolated; Redundanc…
X20BB80	System modules for bus controllers — Bus base The following modules are used on the bus module: Base module (BC, HB, etc.); Supply module The left and right end cover plates ar…
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…

Specifications

Short description

Bus controller

OPC UA server

General information

Diagnostics – Module status	Yes, using LED status indicator and software
Diagnostics – Bus function	Yes, using LED status indicator and software
Power consumption – Bus	2.5 W
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	Evaluation ongoing
Certifications – ATEX	Zone 2, II 3G Ex nA nC IIA T5 Gc; IP20, Ta (see X20 user's manual); FTZÚ 09 ATEX 0083X
Certifications – UL	cULus E115267; Industrial control equipment
B&R ID code	0xEAFB
Status indicators	Module status, bus function
Additional power dissipation caused by actuators (resistive) [W]	-

Interfaces

Transfer – Physical layer	100BASE-TX
Transfer – Half-duplex	Yes
Transfer – Full-duplex	Yes
Transfer – Autonegotiation	Yes
Transfer – Auto-MDI/MDIX	Yes
Min. cycle time " data-placement="top" data-html="true" data-container="body" data-content="The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring."> – Fieldbus	10 ms
Min. cycle time " data-placement="top" data-html="true" data-container="body" data-content="The minimum cycle time specifies how far the bus cycle can be reduced without communication errors occurring."> – X2X Link	2 ms
Fieldbus	OPC UA server
Variant	2x shielded RJ45 (switch)
Line length	Max. 100 m between 2 stations (segment length)
Transfer rate	100 Mbit/s
Synchronization between bus systems possible	Yes

Electrical properties

Electrical isolation

OPC UA isolated from bus and I/O

Operating conditions

Mounting orientation – Horizontal	Yes
Mounting orientation – Vertical	Yes
Installation elevation above sea level – 0 to 2000 m	No limitation
Installation elevation above sea level – >2000 m	Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529	IP20

Ambient conditions

Temperature – Horizontal mounting orientation	-25 to 60°C
Temperature – Vertical mounting orientation	-25 to 50°C
Temperature – Derating	-
Temperature – Storage	-40 to 85°C
Temperature – Transport	-40 to 85°C
Relative humidity – Operation	5 to 95%, non-condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Note	Order 1x terminal block X20TB12 separately. ; Order 1x power supply module X20PS9400 or X20PS9402 separately. ; Order 1x bus base X20BB80 separately.
Pitch " data-placement="top" data-html="true" data-container="body" data-content="Pitch is based on the width of bus base X20BB80. In addition, power supply module X20PS9400 or X20PS9402 is always required for the bus controller.">	37.5 +0.2 mm

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

Data sheet X20BC008U	PDF · 790 KB · 1.27 (12/17/2020) - EN
OPC UA Bus Controller User's manual	PDF · 9 MB · 1.17 (08/22/2023) - EN
X20 System User´s Manual	PDF · 50 MB · 4.40 (03/10/2026) - EN

CAD & dimension drawings

3D File STEP/DXF X20BC and X20IF Module

ZIP · 1 MB · 2.3 (09/19/2019)

Certificates (5)

E115267 UL Certificate of Compliance X20	PDF · 3 MB · 2026_08_27 (08/27/2026)
EU Data Act - X20 IO - Connected Product Information Notice	PDF · 92 KB · 1.00 (09/30/2025)
EU Declaration ATEX X20	PDF · 218 KB · 2023-07 (09/05/2023)
EU Declaration of conformity PLC X20	PDF · 169 KB · 2021/10 (11/08/2021)
UK Declaration PLC X20	PDF · 151 KB · 2024-01 (01/18/2024)